package cn.itcast.bos.web.action.base;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import javax.persistence.criteria.CriteriaBuilder;
import javax.persistence.criteria.CriteriaQuery;
import javax.persistence.criteria.Join;
import javax.persistence.criteria.JoinType;
import javax.persistence.criteria.Predicate;
import javax.persistence.criteria.Root;

import org.apache.commons.lang3.StringUtils;
import org.apache.struts2.convention.annotation.Action;
import org.apache.struts2.convention.annotation.Actions;
import org.apache.struts2.convention.annotation.Namespace;
import org.apache.struts2.convention.annotation.ParentPackage;
import org.apache.struts2.convention.annotation.Result;
import org.apache.xmlbeans.impl.common.IdentityConstraint.IdState;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Scope;
import org.springframework.data.domain.Page;
import org.springframework.data.domain.PageRequest;
import org.springframework.data.domain.Pageable;
import org.springframework.data.jpa.domain.Specification;
import org.springframework.stereotype.Controller;

import com.opensymphony.xwork2.ActionContext;
import com.opensymphony.xwork2.ActionSupport;
import com.opensymphony.xwork2.ModelDriven;

import cn.itcast.bos.domain.base.Courier;
import cn.itcast.bos.domain.base.Standard;
import cn.itcast.bos.service.base.CourierService;

@Controller
@Actions
@Namespace("/")
@ParentPackage("json-default")
@Scope("prototype")
public class CourierAction extends ActionSupport implements ModelDriven<Courier> {
	
	private Courier courier = new Courier();
	
	@Autowired
	private CourierService service;
	
	@Override
	public Courier getModel() {
		return courier;
	}
	
	@Action(value="courier_save",results={@Result(location="./pages/base/courier.html",type="redirect")})
	public String save(){
		service.save(courier);
		return SUCCESS;
		
	}
	
	private Integer page;
	private Integer rows;
	
	
	
	public void setPage(Integer page) {
		this.page = page;
	}


	public void setRows(Integer rows) {
		this.rows = rows;
	}

	@Action(value="courier_pageQuery",results={@Result(name="success",type="json")})
	public String  pageQuery(){
		Pageable pageable  = new PageRequest(page-1, rows);
		
		Specification<Courier> specification = new Specification<Courier>() {

			@Override
			public Predicate toPredicate(Root<Courier> root, CriteriaQuery<?> query, CriteriaBuilder cb) {
				List<Predicate> list = new ArrayList<Predicate>();
				
				if(StringUtils.isNoneBlank(courier.getCourierNum())){
					Predicate p1 = cb.equal(root.get("courierNum").as(String.class),courier.getCourierNum());
					list.add(p1);
				}
				if(StringUtils.isNoneBlank(courier.getCompany())){
					Predicate p2 = cb.like(root.get("company").as(String.class),"%"+courier.getCompany()+"%");
					list.add(p2);
				}
				if(StringUtils.isNoneBlank(courier.getType())){
					Predicate p3 = cb.equal(root.get("type").as(String.class),courier.getType());
					list.add(p3);
				}
				Join<Standard, Courier> join = root.join("standard",JoinType.INNER);
				if(courier.getStandard() != null && StringUtils.isNoneBlank(courier.getStandard().getName())){
					Predicate p4 = cb.like(join.get("name").as(String.class),"%"+courier.getStandard().getName()+"%");
					list.add(p4);
				}
				
				return cb.and( list.toArray(new Predicate[0]));
			}
		};
		
		Page<Courier> page =  service.pageQuery(specification,pageable);
		Map<String , Object> map = new HashMap<String,Object>();
		map.put("total", page.getTotalElements());
		map.put("rows", page.getContent());
		
		ActionContext.getContext().getValueStack().push(map);
		return SUCCESS;
		
	}
	
	private String ids;
	
	
	
	public void setIds(String ids) {
		this.ids = ids;
	}

	@Action(value="courier_delBatch",
			results={@Result(name="success",
			location="./pages/base/courier.html",
			type="redirect")})
	public String delBatch(){
		String[] idArray = ids.split(",");
		service.updateDelTag(idArray);
		return SUCCESS;
	}

	@Action(value="courier_findnoassociation",
			results={@Result(name="success",type="json")})
	public String findnoassociation(){
		
		List<Courier> couriers = service.findnoassociation();
		
		ActionContext.getContext().getValueStack().push(couriers);
		return SUCCESS;
		
	}

	
}
	